Aas-producer-regruxatincr mechanism



C. W. LUMMIS.

GAS PRODUCER REGULATING MECHANlSM.

APPLICATION FILED 1uLYs1. 191s.

, 1,390,454. PatentedSept. 13,1921.

' lyzww I UNITED STATES PATENT OFFICE.

CHARLES W. LUMMIS, OF WORCESTER, MASSACHUSETTS, ASSIGNOR T0 MORGAN CON- STRUCTION COMPANY, OF --WORCESTER, MASSACHUSETTS, A CORPORATION OF MASSACHUSETTS.

GAS-PRODUCER-BEG-ULATING MECHANISM.

Appiication filed July 31,

To all whom it may concern:

Be it known that I, CHARLES W. LUMMIs, a citizen of the United States, residing at Worcester, in the county ofWoi-cester and Commonwealth of Massachusetts, have in vented a new and useful Im rovement in a Gas-Producer-Regulating echanism, of which the following is a specification, accompanied by drawings forming a part of the same.

My present invention for regulating the feeding of fuel to a gas producer in'proportion to the quantity of.

the blast of air and steam by which the consumption of fuel is maintained, and it comprises mechanical means for feeding coal to the gas producing chamber of the producer, and mechanismby whichthe rate of feeding is increased when the consumption of fuelis increased by an increase in the quantity of the blast, and reduced when the quantity of the blast is lessened. The consumption of fuel in a gas producer is mainj tained by a blast of air and steam, admitted to the gas producing chamber by any of the well known devlces for this purpose, such for instance as an ordinary steam jet blower, or a steam driven air blower in whichthe exhaust steam is mixed with the entering air. Since the rate of consumption of fuel is determined by the quantity of the blast it is desirable thatthe rate of feeding may be varied varies. v

It is the object of my invention to provide a gas producer with a device for controlling the rate of feeding fuel to the gas producing chamberin proportion to the quantity of the blast, as hereinafter described, the novel" features being pointed out in the appended claims;

Referring to the accompanying drawings, Figure 1 denotes a side elevation of a fuel feeding apparatus embodying my present invent1on. Fig. 2 is a planview of a portion of the ap aratus; I Similar-referencecharacters refer to $11111- lar parts in thedifferent'figures,

Referring to Fig. 1 of the drawings, 1 denotes a portion of a gas producerinclosing a as producing chamber and provlded with a uel feeding mechanism 2 of therotary type,

such, for example, as that described in Let- Specification of Letters Patent.

relates to a deviceas the quantity of the blast Patented Sept. 13, 1921.

1918. Serial No. 247,574.

ters Patent of the United States issued to me 'carries upon one end an arm 10 pivotally connected by a link 11 with a crank pin 12 carried upon a revolving disk 13. Sup

ported upon a base 14 is a cylinder 15 connected by a pipe 16 with the source of the steam supply of the gas producer. This steam supply may obviously be employed in connection with the usual type of steam jet blower, to carry in air, along with the steam to the fuel bed, or it may serve as the motive power for an ordinary air blower for the producer, the exhaust steam being mixed with the entering air. Such a blower, of either of the types above mentioned, is indicated diagrammatically in Fig. 1 by the numeral 16, being actuated by steam supplied from a pipe 16", the latter connected with the pipe 16, as shown. Mounted upon the cylinder 15 is a frame 17, and contained within the cylinder 15 is a piston 18 having a" piston rod 19 to which a collar 20 is attached. Between the collar 20 and the upper portion of the frame 17 is inserted a spiral spring 21. The piston rod 19 is pivoted at its upper end to a lever 22 which is pivotally supported in a bracket 23 projecting from the frame 17. The lever 22 is pivotally connected by a-link 24 with a lever 25, pivotally supported upon a stand 26. The lever 25 carries a pair of rolls 27 and 28 in contact with the link 5. The link 24 includes a turnbuckle 29, thereby providing a hand adjustment for increasing or lessening the length of the link 24 in order to of my present invention.

of the spring 21, and rock the lever 22, and through the link 24 rock the lever 25 to lift the end containing the rolls 27 and 28. This movement of the lever 25 will lift the link 5 and slide 6 on the arm 7. The nearer the slide 6 is moved toward the free end of the arm 7 the greater will be the amplitude of the reciprocating motion of the link 5 as the arm 7 is oscillated by the crank disk 13, thereby increasing the swinging movement of the bell crank 3, producing a faster feed, ing of fuel to the gas producer.

In case the pressure of the blast is decreased the spring 21 will force the piston 18 downwardly and reverse the movement of the levers 22 and 25, causing the slide 6 to be moved on the oscillating arm 7 nearer the shaft 8 and decreasing the swinging movement of the bell crank 3.

A fixed relation will be maintained between the rate at which fuel is fed to the gas producer and the quantity of the blast by which the consumption of fuel is maintained, as the position of the slide 6 on the arm 7 will be determined by the pressure of the steam in the cylinder 15 as measured by the strength of the spring 21.

I have not shown or described the blast producing means or the application of a last to the producer, as they form no part They are now in common use and their construction and operation will be understood by those conversant with the operation of gas producers. Obviously the invention contemplates the use of any known type of blast device, such, for instance, as a steam jet blower, or a steam driven air blower, wherein the exhaust steam may be mixed with the entering air.

Neither do I confine myself to the use of a rotary fuel feeding mechanism such as that shown in the United States Letters Patent No. 1,270,963, issued to me July 2, 1918, as any form of fuel feeding mechanism may be used in connection with means for varying the rate of fuel feeding corresponding to the quantity of the blast.

As the quantity of the blast when a steam jet is employed depends upon the pressure-of the steam, I connect the cylinder 15 directly with the source of steam supply and as the same is true when a steam driven air blower is employed under pressure through the pipe 16, and through the mechanism forming the subject of my present invention increase or decrease the fuel supply to the gas producer directly as the blast is increased or diminished.

A manual adjustment of the above described mechanism by the operator is provided, in order to secure the requisite feeding of fuel with a given steam pressure by meansof the .turnbuckle 29,- and also by means of the series of holes 30 in the lever 22, and,

a similar series of holes in the lever 25, not

shown, which enables the link 24 to be varied in length and also to be pivotally attached to the levers 22 and 25 at different distances from the fulcrums of the levers.

I claim,

1.v In apparatus of the class described, a gas producer having a steam actuated device for delivering a last of air and steam to the fuel bed, a mechanically actuated fuel feeding mechanism for said producer, means controlled by the steam pressure acting on said blast devices for varying the rate of feed of said feeding mechanism, and means for manually adjusting said rate of feed.

2. In apparatus of the class described, a gas producer provided with a steam actuated blast device, the quantity of blast being proportional to the steam pressure, a mechanically actuated fuel feeding mechanism for said producer, and means operable to procure changes in the rate of feed of said fuel feeding mechanism in response to changes in the steam pressure on said blast device. I a V 3. In a gas producer provided with a blast, the combination of a fuel feeding mechanism, means for actuating the feeding mechanism comprising an oscillating shaft, a radial arm carried thereby, a slide carried on said arm, a reciprocating, link connecting said slide with the fuel feeding mechanism, andmeans controlled by the source of pressure of the blast for varying the radial position of said slide on said radial arm. v

a. A gas producer, the combination with steam actuated devices for delivering a blast of air and steam to the fuel bed, of a mechanically actuated fuel feeding mechanism,

. and meanscontrolled by the steam pressure acting on said blast devices for varying the rate of feed of said feeding mechanism.

5. In a gas producer provided with a blast, the combination with a fuel feeding mechanism, and means for actuating the same, of means for varying the rate of fuel feeding controlled by the variation of the pressure of said blast, comprising a piston equipped cylinder communicating with the source of pressure of the blast whereby the piston is moved in one direction, a spring for reversing the motion of the piston,,and operative mechanismbetween the piston rod and the feed actuating means.

6. In a gas producer provided with a blast, a fuel feedin mechanism, means for actuating the feeding mechanism, comprisingan oscillating arm, a slide carried on said arm,

means for actuating said arm through a definite are, means for operatively connecting said slide with the fuel feeding mechanism, and means controlled by the source of pressure of the blastrfor varying the position of said slide on the oscillating arm.

7. In'a gas producer provided with a blast,, the combination with a fuel feeding mechanism and means for actuating the same, comprising an oscillating arm and a slide movable thereon, of a link operatively connected at one end with the feeding mechanism and having its opposite end pivoted to said slide, and means applied to said link to move said slide on the oscillating arm controlled by variations in the source of pressure of the blast.

8. In a gas producer provided with a blast, the combination with a rotary feeding mechanism, of means for imparting an intermittent motion to said feeding mechanism, comprising an oscillating arm and a movable slide carried thereon and operatively connected with the feeding mechanism, of means for moving said slide toward the free end of said oscillating arm controlled by the source of pressure of the blast, and a spring for reversing the movement of said slide on the oscillating arm.

9. In a as producer provided with a blast, the combination with a rotating feeding mechanism, of means for actuating said feeding mechanism comprising an oscillating arm, and a slide carried thereon, a link pivotally connecting said slide with the feeding mechanism, a lever pivotally supported on a fixed framework, rolls carried by said lever contacting with the upper and lower edges of said link, a second lever pivotally supported on a fixed framework, means for rocking said second lever controlled by the source of pressure of the blast, and an adjustable link connecting said levers.

10. In a gas producer provided with a steam actuated blower for delivering blast thereto, means for varying the rate of feeding fuel to said producer in proportion to the pressure of the steam acting on said blower.

Dated this th da of July 1918.

CHA LES W. LUMMIS.

Witnesses:

RUFUS B. FOWLER, PENELOPE COMBERBACH. 

